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General Functions of Immunoglobulins

Ag binding - Immunoglobulins bind specifioally to one or a few closely related antigens. Each immunoglobulin actually binds to a specific antigenic determinant. Antigen binding by antibodies is the primary function of antibodies and can result in protection of the host.

-    Can result in protection

—    Valency - The valency of antibody refers to the number of antigenic determinants that an individual antibody molecule can bind. The valency of all antibodies is at least two and in some instances morę.